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Related Concept Videos

Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Rapid Identification of Pathogens01:25

Rapid Identification of Pathogens

MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Tuberculosis01:23

Tuberculosis

Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...

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Updated: Jun 12, 2026

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)
10:41

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)

Published on: April 30, 2020

Biomarkers and diagnostics for tuberculosis: progress, needs, and translation into practice.

Robert S Wallis1, Madhukar Pai, Dick Menzies

  • 1Pfizer, New London, CT, USA.

Lancet (London, England)
|May 22, 2010
PubMed
Summary

Accurate tuberculosis diagnostics are crucial for patient management, but current methods are limited. Advancing biomarker and diagnostic research requires investment and stakeholder collaboration for effective implementation in public health programs.

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Last Updated: Jun 12, 2026

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)
10:41

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)

Published on: April 30, 2020

Area of Science:

  • Infectious Diseases
  • Biomarkers
  • Diagnostic Technologies

Background:

  • Human infection with Mycobacterium tuberculosis exists on a continuum from latent to active disease, influenced by factors like HIV and immunosuppression.
  • Current tuberculosis diagnostics categorize patients but do not fully capture the dynamic nature of infection or predict disease progression.
  • Accurate tuberculosis case detection is challenging due to limitations in existing diagnostic methods.

Purpose of the Study:

  • To review the current state of tuberculosis biomarkers and diagnostics.
  • To identify gaps and challenges in the development and implementation of new diagnostic tools.
  • To emphasize the need for investment and stakeholder engagement to translate research into clinical practice.

Main Methods:

  • Literature review of current tuberculosis diagnostic and biomarker research.
  • Analysis of the limitations of existing diagnostic platforms.
  • Discussion of factors influencing the successful translation of new tests into public health programs.

Main Results:

  • Progress has been made in developing new diagnostics, but significant gaps remain for specific populations (e.g., smear-negative, childhood TB) and predicting latent TB reactivation.
  • Despite advancements in molecular platforms, a simple, inexpensive point-of-care test for tuberculosis is still unavailable.
  • The impact of new tests is contingent on implementation strategies, laboratory capacity, and access to appropriate therapy.

Conclusions:

  • Translating scientific advancements in tuberculosis biomarkers and diagnostics into effective clinical and public health programs requires political commitment, funding, and stakeholder collaboration.
  • Continued investment is needed to address limitations in current diagnostic capabilities, particularly for challenging cases.
  • Effective implementation strategies are essential to maximize the benefit of new diagnostic tools for tuberculosis control.